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I have heard people say that 223/5.56 rounds are not "viable" in a 7.5" barrel.
These guys were getting 2300ish fps with 55gr 223 out of a 7.5" barrel. That doesn't seem awful to me. It would beat any 22 mag load, for energy, that I have seen.
View: https://youtu.be/v-7K8Fjx5DA?feature=shared
I am wondering if the velocity could be raised a bit by using a faster than normal powder or if the barrel length will limit speed regardless of the powder used?
These guys were getting 2300ish fps with 55gr 223 out of a 7.5" barrel. That doesn't seem awful to me. It would beat any 22 mag load, for energy, that I have seen.
I am wondering if the velocity could be raised a bit by using a faster than normal powder or if the barrel length will limit speed regardless of the powder used?